Equalizing arrangement for six-wheel trucks



I. A. LAMONT AND L. RICHARDSON.

EQ'UALIZING ARRANGEMENT FOR SIX-WHEEL TRUCKS.

APPLICATION FILED MAY 24, I922.

Patented Dec. 5, 1 922.

If I -4 I Job/25201720222 "Q J. A. LAMONT AND L. RICHARDSON. EQUALI ZING ARRANGEMENT FOR SIX-WHEEL TRUCKS.

APPLICATION FlLED MAY 24, 192

Patented Dec. 5, 192 2;

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k m llll l HHU Patented Dec. 5, 1922.

JOHN LAM NT. OF CHICAGO, vl -tl x ns. AND LAWEENQ ]R c A DsomoF LOUIS- vILLE. ENIWK S IGNOBS t A ER CAN T L 'I NIP IES o gamma ILLINOIS, A oonroaarronor new JERSEY. I I I i E otrA rzmG aaaanemunnr roe SIX-WHEEL 'rn uoxs.

Application filed May 24,1922. Seria1 No. 563,333. I

T0 allwhomz't may concern:

Be it known that we, JOHN A. LAMONT and LAWRENCE RICHARDSON, citizens of the United States, residing, respectively, at Chicago, in the county of Cook and State of Illinois, and at Louisville, in the county of Jefferson and State of Kentucky, have jointly invented certain new and useful Improvements in an Equalizing Arrangement for Six-Wheel Trucks, of which thelfollowing is a specification.

This invention relates to an equalizing arrangement for six-wheel trucks.

One object of the invention is to provide a simple and efficient six-wheel equalizing truck arrangement whereby an equal division of the bolster end loads to the middle journal boxes on both sides of the truck is insured and, accordingly, any tendency of said middle journal boxes to tilt is overcome. 7

Another object isto provide a simple cooperative arrangement between the equalizing levers and the middle journal boxeswhereby there is no tendency to" cramp said middle journal boxes against proper movements. I

Another object is to provide a simple, durable and eliicient vsix-.wl eelequalizing truck arrangement -.adap;ted,to meetthe various requirements for successful commercial operation. I I I I These and other objects are accomplished by means of the arrangement disclosed on the accompanying sheets of drawings, which- I I I I Figure 1 is a fragmentary side elevation of a six-wheel cartruck embodying our invention; I Figure 2 is a fragmentary top plan, vlew of the same;

Figure 3 is an enlarged-fragmentary lone gitudinal sectional view through one ofthe side frames of the truck and showing. v arious cooperating parts; I

F'gure 4 is a vdetail sectional view taken in the plane of line 4+4: of Figure 3; and Figure 5 is a detail sectional view taken in the planeof line 5 ,5 of Figure 3,

The various novel features of .our in ven .tion will be apparent from the following description and drawings and will be particularly pointed out claims.

Referring I to the it will be noted that the invention is illustrated in connection with a six-wheel car truck including side frames 10, only one of which is shown. The side frame structure and the associated parts oneach side of the truck being the same reference in the detail description will be'had to but one side of the truck. 2

in the appended figures of the drawings,

Each side frame has openings 11 for end 2 journal boxes 12, a relatively largeopening 13 for the-reception'of an intermediate journal box 141 andflother associated parts, and openings 15 for the reception of ends of transverse bolster members 16 whichreceive loads from the main bolster member 17. It will be, understood that the load taken by {the mainbolster member 17 is to be transn i i tted through the 'transverse bolster members 16, equalizing;levers 18 andto the end journalbox 12 through the .side frame 10 and directly from .theiequalizingplevers to the; intermediate journal box 14. The outer ends of the equalizing levers 18 are inter posedbetween and ,pivotally connected .to the sidewalls 19 of the side frame 10 by .pins. 20. These-equalizing levers bow .downwardly from their. pivotal points20 to form seat .portions'21 forsthe ends of the bolster members 16 which, rest upon such seat portions. -The equalizing levers then extend upwardly and inwardly. longitudinally of {the truck and terminate vin horizontally extending portions which are telescopically of theflrightqhand equalizing'lever is pro vided"with, a tonguie 22 which is received within an end -.poc-ke t 23 in the 'inner end of the left hand equalizingflever. Preferably,.3the sides of the tongue :22 are provided with trunnions 24 which extend intofopenings 25 formed in opposite sides arranged. "I'More. specifically, the inner end i of a vsleew '26 which fits-over the ltongue 22 and within the pocket 23.- .Alsokpreferablythe tongue 22-, sleeve 26 and pocket .23 are made csquarewin section to insurexa large bearing contact for reducing the tendency to Wear the frictional engaging surfaces. However, the upper and lower surfaces of tongue 22 are convex to permit a free vertical movement of the inner ends of the levers 18 as well as a relative longitudinal sliding movement. The sleeve, of course, upon becoming worn, may be replaced by a new sleeve.

Each equalizing lever 18 is provided with a bracket 27 for the reception of a removable friction plate 28 which rests upon a spring cap 29 which in turn sets over a plurality of concentrically arranged springs 30 located in spring pockets 31 at opposite sides of the journal receiving portion 32 of the intermediate journal box 14:. The intermediate journal box 14 is guided in its vertical movements by guide members lilach of these guide members 33 is provided. with projections 34 which are received within associated pockets in each equalizing lever 18, and each guide member 33 is releasably held in its associated equaliz ing lever by passing a Ushaped pin 36 through a portion of the lever 18 and through the projections 34. Preferably the journal box guide members 33 are permitted a given amount of play in the equalizing levers to permit of slight angularityor movement to adjust themselves to the adj acent wearing faces of the intermediate journal box. It will be noted that the center of these journal box guides 33 are on a hori zontal line passing through the lever fulcrum pins 20 so that any normal movement above or below such horizontal line given to the guide blocks 33, by virtue of being carried by the equalizing levers 18, is practically vertical and, accordingly, there is no tendency to cramp the journal box. The line drawn between the lever fulcrum pins 20 also intersects the middle journal box approximately on the horizontal line of force of the journal bearing. The bearing face of the lever spring seat or friction plate 28 also extends on this line so that the longitudinal movement of the lever spring seat or friction-plate 28 relative to the spring cap 29 due to vertical movement of the levers is practically negligible.

"Referring particularly to Figure i, it will be noted that the intermediate journal box guides 33 have a sliding fit with the inner surfaces of the side walls 19 of the side frame-1O for holding the center line of equalizing levers on the center line of the side frame.

Vi hen the truck is curving, lateral movement of the middle pair of wheels and j ournal box relative to the end journal boxes and side frame is provided for by allowing necessary clearance between the inner surfaces of the side walls of the side frame and side walls of the spring pocket portion of the journal, and also by providing at the same time necessary bearing surface between the friction plates 28 and spring caps 29.

As mentioned above, the inner ends of the equalizing levers are telescopically connected, such connection being over the middle journal box. Accordingly, there is insured substantially an equal division of bolster end loads on either side of the truck to the middle journal box springs, thereby overcoming any tendency for the middle journal boxes to tilt or stand at an angle to the vertical.

It is our intention to cover all modifications of the invention falling within the spirit and scope of the following claims.

We claim:

1. In a six-wheel'truck, the combination of a side frame, journal boxes associated therewith, and equalizing levers for dis tributing the load to said ournal boxes, the inner ends of said equalizing levers being telescopically arranged to equalize the distribution of the load and to overcome any tendency of the middle journal box to tilt.

2. In a six-wheel truck, the combination of a side frame, journal boxes associated therewith, equalizing levers for distributing the load to said journal boxes, the inner ends of said equalizing levers being telescopically arranged'to equalize the distribution of the load and to overcome any tendency of the middle journal box to tilt. and. guide means carried by said equalizing levers for guiding the intermediate journal box in its vertical movements.

3. In a six-wheel truck, the combination of a side frame, journal boxes associated therewith, and equalizing levers for distributing theload to said journal boxes, the inner ends of said equalizing levers being telescopically arranged to equalize the distribution ofthe load and to overcome any tendency of the middle journal box to tilt, said telescopic arrangement permitting relative movement of said equalizing levers in a plurality of directions.

1. ln a six-wheel truck, the combination of a a side frame, journal boxes associated therewith, equalizing levers for distributing the load to said journal boxes, and guide members carried by said equalizing levers for guiding the intermediate journal box in its vertical movements.

5. In a six-wheel truck, the combination of a side frame, journal boxes associated therewith, equalizing lev'ers for distributing the load to said journal boxes, and guide members removably secured to said equalizing levers for guiding the intermediate journal box in its vertical movements.

6. In a six-wheel truck, the combination of a side frame, journal boxes associated therewith, equalizing levers pivotallyconnected to said side frame for distributing the load to said journal boxes, guide members carried by said equalizing levers for guiding the intermediate ournal box in its vertical movements, the middle ofthe guiding surfaces of said guide members lying in substantially the same horizontal plane of the pivotal points of said equalizing levers to prevent the intermediate journal box from being cramped as a result of relative movement between such intermediate journal box and said equalizing levers.

7. In a six-wheel truck, the combination of a side frame, journal boxes carried thereby, equalizing levers pivotally connected to said side frame, springs carried by an inter= mediate journal box, and spring caps mounted on said springs, said equalizing levers operatively engaging said spring caps in substantially the same horizontal plane in which said equalizing levers are pivotally mounted for causing a minimum amount of relative longitudinal movement between said spring caps and equalizing levers as a result of relative vertical movement between said equalizing levers and intermediate journal box.

8. In a six-wheel truck, the combination of a side frame, an equalizing lever operatively connected to said side frame, a guide member for an intermediate journal box carried by said equalizing lever and associated with said side frame in a'manner whereby the longitudinal center line of said side frame and equalizing lever substantially coincide.

9. In a six-wheel truck, the combination of a side frame having side walls, an equalizing lever mounted between said side walls and operatively connected to said side frame, and a journal box guide member carried by said equalizing lever and cooperating with the side walls of said side frame inamanner to maintain said side frame and equalizing lever in proper alignment.

10.111 a railway car truck, the combination of a side frame having side walls,an equalizing lever mounted between said side walls and operatively connected to said. side frame, and a member carried by said equalizing lever and cooperating with said side walls for maintaining said side frame and equalizing lever in longitudinal alignment.

11. In a six-wheel truck, the combination of a side frame, journal boxes associated therewith, equalizing levers movably mounted with respect to said side frame and arranged for distributing'the load to said-journal boxes, and guide members carried by said equalizing levers for diate journal box in its vertical movements.

12. In a six-wheel truck, thecombination of a side frame, an intermediate journal box associated therewith, resilient means carried by said journal box, and equalizing levers for transmitting the load to said j ournal'box through said resilient means,"the inner ends of said'equalizing levers being telescopically arranged to neutralize any difference in load transmitted through said-levers to saidjournag box.

i ned at Chica o of May, 1922. b

JOHN A. LAMONT. LAWRENCE RICHARDSON.

Illinois, this 15th day guiding the intermei 

